This mini-series introduces dht::tokens_filter and uses it for consuming staging sstable in the view_update_generator.
The tokens_filter uses the token ranges owned by the current node, as retrieved by get_keyspace_local_ranges.
Refs #9559Closes#11932
* github.com:scylladb/scylladb:
db: view_update_generator: always clean up staging sstables
compaction: extract incremental_owned_ranges_checker out to dht
(cherry picked from commit 3aff59f189)